An Ontario waste management company was recently fined $130,000 after a workplace flash fire injured four workers. The case is a reminder that employer liability under Ontario’s workplace safety regime can be significant where hazardous processes are not managed with sufficient care.
For employers, the practical lesson is straightforward: workplace safety policies and programs must be supported by continuing training, active supervision, and consistent enforcement.
Background Facts
On April 30, 2024, workers were offloading flammable solvents from a vacuum truck into a storage tanker. At the same time, other workers positioned a truck in an adjacent bay to offload wastewater and other liquids.
During the process, flammable vapours were released and drawn into the idling truck’s air intake. This created an ignition source which caused a flash fire between the trucks. Four workers were injured.
The company pleaded guilty and was convicted on May 13, 2026. The court fined the company $130,000, plus the required 25 per cent victim fine surcharge.
Issue
This conviction serves as an important reminder of the extent of employer liability that can arise when workers are injured in the workplace, particularly where workplace safety policies do not exist or there is an absence of competent supervision or insufficient training or enforcement.
The offence involved a breach of section 63(c) of Ontario Regulation 851, which governs handling of explosive materials, and section 25(1)(c) of the Occupational Health and Safety Act, which mandates that employers ensure that all required safety measures and procedures are carried out in the workplace.
Responsibilities
This case illustrates how Ontario’s workplace safety framework places direct responsibility on employers to anticipate and control hazards. The regulation at issue required the process to be carried out in an area with no potential sources of ignition where a gas, vapour, dust, or fume capable of forming an explosive mixture with air may be produced.
Here, the facts show a classic safety failure: hazardous materials were present, unsafe working conditions were allowed to persist, and an incident resulted in injuries to workers.
The conviction and substantial fine reflect the seriousness with which the court treated the employer’s failure to ensure the process was conducted safely.
Key Takeaway
For employers, the case reinforces a broader compliance point. Workplace safety policies must be more than written procedures. They need to be embedded through training, monitored in practice, and enforced consistently so that workers understand and follow the controls required for hazardous tasks.
Safety is paramount, and fines for workplace injuries can be substantial. Employers should treat policy design, training, and enforcement as ongoing obligations rather than one-time measures.
If you are involved in the oversight of workplace safety, seek legal advice early to ensure that risks are assessed, policies are created and implement, and workplace safety is consistently prioritized.